import threading
import time
import datetime
import csv
import json
import requests
from lxml import etree


class SpyderController:
    # Bilibili视频爬虫控制器,打开网页，爬取BilibiliVideo.py中的数据,将其下载下来，保存为csv文件
    def getBilibiliVideoList(self, videoCount, threadCount, waitTime):
        """
        整个爬虫的调用程序
        :param videoCount: 爬取的视频数量，若不限制可设置为999
        :param threadCount: 爬取的线程并发数量
        :param waitTime:float: 每个线程的等待时间，单位秒（避免爬取过快）
        :return: list[BilibiliVideo] 返回处理完成后的videoList
        """
        if videoCount < threadCount:
            threadCount = videoCount
        if videoCount > 20:
            videoCount = 20
        url = "https://api.bilibili.com/x/web-interface/ranking/v2?"
        headers = {
            'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:125.0) Gecko/20100101 Firefox/125.0'
        }
        #f = open("file_3.csv", "a", encoding="UTF-8", newline="")
        #csv_writer = csv.writer(f)

        rank_text = requests.get(url=url, headers=headers).text
        # 将含有"万"的数据转换为数字
        def crawl_data(start_index, end_index):
            def convert_to_number(lst):
                result = []
                for item in lst:
                    if '万' in item:
                        number = int(float(item.replace('万', '')) * 10000)
                        result.append(str(number))
                    else:
                        result.append(item)
                return result

            # url = "https://api.bilibili.com/x/web-interface/ranking/v2?"
            # headers = {
            #     'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:125.0) Gecko/20100101 Firefox/125.0'
            # }
            f = open("file_3.csv", "a", encoding="UTF-8", newline="")
            csv_writer = csv.writer(f)
            #
            # rank_text = requests.get(url=url, headers=headers).text
            for i in range(start_index, end_index):
                parsed_data = json.loads(rank_text)
                aid = str(parsed_data["data"]["list"][i]["aid"])
                print(aid)

                bvId = [str(parsed_data['data']['list'][i]['bvid'])]
                topNo = [str(i+1)]

                video_url = "https://www.bilibili.com/video/av" + aid + "/?"
                video_text = requests.get(url=video_url, headers=headers).text
                tree = etree.HTML(video_text)
                #print(video_text)
                title = tree.xpath('//div[@class="video-info-title-inner"]//text()')
                uploadTime = [str(parsed_data["data"]["list"][i]["ctime"])]
                viewCount = tree.xpath('//div[@class="view item"]/div/text()')
                likeCount = tree.xpath('//div[@class="video-like video-toolbar-left-item"]/span/text()')
                coinCount = tree.xpath('//div[@class="video-coin video-toolbar-left-item"]/span/text()')
                favoriteCount = tree.xpath('//div[@class="video-fav video-toolbar-left-item"]/span/text()')
                bulletCount = tree.xpath('//div[@class="dm-text"]/text()')
                creatorFanCount = tree.xpath('//div[@class="default-btn follow-btn b-gz not-follow"]/span/text()')
                viewCount = convert_to_number(viewCount)
                likeCount = convert_to_number(likeCount)
                coinCount = convert_to_number(coinCount)
                favoriteCount = convert_to_number(favoriteCount)
                bulletCount = convert_to_number(bulletCount)
                # match = re.search(r'\d+', text)
                # number = match.group()
                followers_str = creatorFanCount[0].strip().split()[1]
                followers_num = float(followers_str.replace('万', '')) * 10000
                # 转化为整数
                followers_num = int(followers_num)
                creatorFanCount = [str(followers_num)]
                commentCount = [str(parsed_data['data']['list'][i]['stat']['reply'])]
                creatorId = [str(parsed_data['data']['list'][i]['owner']['mid'])]
                creatorName = [str(parsed_data['data']['list'][i]['owner']['name'])]
                bulletCount = convert_to_number(bulletCount)

                #up_url = "https://space.bilibili.com/" + creatorId[0] + "?"
                up_url = "https://space.bilibili.com/401742377?spm_id_from=333.788.0.0"
                up_text = requests.get(url=up_url, headers=headers).text
                tree = etree.HTML(up_text)
                #print(up_text)

                all_data = topNo + bvId + title + [
                    video_url] + uploadTime + viewCount + likeCount + coinCount + favoriteCount + bulletCount + commentCount + creatorId + creatorName + creatorFanCount
                csv_writer.writerow(all_data)
                all_data_list = []
                all_data_list = all_data_list + [topNo, bvId, title, [video_url], uploadTime, viewCount, likeCount, coinCount, favoriteCount, bulletCount, commentCount, creatorId, creatorName, creatorFanCount]
            f.close()
            return all_data_list

        thread_list = []
        video_per_thread = videoCount // threadCount

        for i in range(threadCount):
            start_index = i * video_per_thread
            end_index = (i + 1) * video_per_thread if (i + 1) < threadCount else videoCount
            thread = threading.Thread(target=crawl_data, args=(start_index, end_index))
            thread_list.append(thread)
            thread.start()
            time.sleep(waitTime)

        for thread in thread_list:
            thread.join()


if __name__ == '__main__':
    f = open("file_3.csv", "w", encoding="UTF-8", newline="")
    csv_writer = csv.writer(f)
    csv_writer.writerow(
        ["topNo", "bvId", "title", "url", "uploadTime", "viewCount", "likeCount", "coinCount", "favoriteCount",
         "bulletCount", "commentCount",
         "creatorId", "creatorName", "creatorFanCount"])
    f.close()
    spyderController = SpyderController()
    spyderController.getBilibiliVideoList(6, 2, 0.3)  # 设置线程数为2